Abstract: Vinylidene chloride methyl acrylate copolymer coextruded with second and third different polymeric compositions in fabrication of multiple layer films. The third layer is between the first and second layers. The second composition can have a melting temperature greater than 204.degree. C., and can be, for example, polyester, polyamide, or polycarbonate. Preferred films contain at least five layers, at least one of which has a typical extrusion processing temperature higher than the typical extrusion processing temperature of the VDC-MA. Methods of fabricating such films are also disclosed.
Type:
Grant
Filed:
December 28, 1989
Date of Patent:
February 18, 1992
Assignee:
American National Can Company
Inventors:
Mark E. Nordness, Frank T. Bauer, Robert J. Blemberg, John P. Eckstein, David M. Banik, Grant A. Gustafson